Home / 4,111.76-6,168.36-1,919.36

Finding the Fourth Proportional to 4,111.76, 6,168.36 and 1,919.36

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Solution

The fourth proportional to 4,111.76, 6,168.36 and 1,919.36 is: 2,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.76 : 6,168.36 = 1,919.36 : x
  2. Step 2: Convert to fraction form
    4,111.76/6,168.36 = 1,919.36/x
  3. Step 3: Cross multiply
    4,111.76x = 6,168.36 × 1,919.36
  4. Step 4: Simplify right side
    4,111.76x = 11,839,303.45
  5. Step 5: Solve for x
    x = 11,839,303.45/4,111.76
  6. Step 6: Final answer
    x = 2,879.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.